i don't know what kind of driver version do you mean...
but U can also try:
fcstat fcs0
or if U want, U can download the hbainfo from:
http://www.tablespace.net/hbainfo/and ther U can find the Driver Version and much more....

lsdev -Cc adapter will often list the driver type in brackets. Run lslpp -l
| grep number in brackets
This will tell you the driver being used to adapter involved. This does not
work at all levels of AIX.
It will begin with df for fibre channel